Find eight pairs among 16 cards on ten freshly shuffled boards. The mismatch allowance drops from 12 early on to 9 later. Consecutive matches build CHAIN.
Select a card with WASD and turn it with RETURN. After examining two cards, press RETURN again to continue. Mismatches turn face down; matches stay face up.
Directions work on the keyboard or pad; the pad button also acts as RETURN. SPACE opens confirmation to restart this stage. NO is selected initially. Choose with A/D, confirm with RETURN, or cancel with SPACE. Play pauses during confirmation. CTRL+C returns to BASIC.
Framed, thick cards flip through five shapes: their face narrows to an edge, then the other side opens. Matches and mismatches have distinct sounds and a viewing pause. Wait until each animation ends before pressing again.
PAIRS counts completed pairs, MISSES shows mismatches/limit, and CHAIN counts successive matches. Remember both the picture and its position, then secure pairs you have already seen.
